First of all: Great to hear that u got almost all of ur funds back from ur previous machine which caused a lot of trouble.
2 year warranty sounds nice in the first thought but always make sure to doublecheck what will be covered from that.
Other than that, it certainly doesn't sound bad. There are also numbers stored on their website. It certainly doesn't hurt to get in touch and express your interest.
You often get an idea of how legit they really are.
It is an Antminer S19k pro, and from what I understood it should be a solid machine, and from what I estimated, with the 120T machine I should have a nice profit from mining.
Keep in mind that BTC is a notoriously volatile market. The profitability of mining can change rapidly with fluctuations in the price of Bitcoin. I checked with vipera tech all the conditions and they seem fair enough. They also offer a 2 year warranty. I am checking with them now what is included in this warranty.
They offer a Warranty called "CYCLESAFE" - you should find all the information about it here: https://www.viperatech.com/cyclesafe-warranty/2 year warranty sounds nice in the first thought but always make sure to doublecheck what will be covered from that.
Other than that, it certainly doesn't sound bad. There are also numbers stored on their website. It certainly doesn't hurt to get in touch and express your interest.
You often get an idea of how legit they really are.